.rtop,.rbottom{display:block; padding: 0; border: 0; margin: 0; line-height: 0; font-size: 0}
.rtop *,.rbottom *{display:block;height: 1px;overflow: hidden; padding: 0; border: 0; margin: 0; line-height: 0; font-size: 0}
.r1{margin: 0 5px; padding: 0; border: 0; line-height: 0; font-size: 0}
.r2{margin: 0 3px; padding: 0; border: 0; line-height: 0; font-size: 0}
.r3{margin: 0 2px; padding: 0; border: 0; line-height: 0; font-size: 0}
.r4{margin: 0 1px;height: 2px; padding: 0; border: 0; font-size: 0}

.rs1{margin: 0 2px; padding: 0; border: 0; line-height: 0; font-size: 0}
.rs2{margin: 0 1px; padding: 0; border: 0; line-height: 0; font-size: 0}